305 most likely... cant go much wider than that while keeping the setup square. I will not be selling my wheels to anyone who wants to make a replica ZL1. No discussion.

So.....does this mean you're not selling your OEM wheels at all, or just not to anyone looking to make a ZL1 replica? I would love to have those wheels, and I have no intention of making a "replica" anything, but I guess I'm just confused about your statement.